function OpenWin( sTRURL ){
   var screen_width = screen.availWidth - 10;
   var screen_height = screen.availHeight - 30;
   sTRFeatures = "screenX=0,screenY=0,width=" + screen_width + ",height=" + screen_height +",";
   sTRFeatures += "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes";
   windowname=window.open( sTRURL, "", sTRFeatures );
   windowname.focus();
  }